I would say A or C since it depends on the myth.
Focused on private rather than public affairs
In 1985, reform-minded Mikhail Gorbachev came to power as General Secretary of the Soviet Union. He introduced reforms along liberal lines. The two reforms most commonly associated with him are glasnost and perestroika. Glasnost means 'openness' and refers to government transparency and increased freedom of expression.
Perestroika refers to a series of political and economic reforms meant to kickstart the stagnant 1980s economy of the Soviet Union. Its architect, President Mikhail Gorbachev, would oversee the most fundamental changes to his nation's economic engine and political structure since the Russian Revolution.
It would be "d. eight-hour days" that was not a problem faced by workers in nineteenth century mills or mines, since legislation advocating for strict working hours did not come about until the Progressive Era.